what leaf springs are you using? Id try leaving the shocks where they are and going up 2PSI on the tires, looks like its crushing the tire and bouncing.
Calvert updated their stock on shocks.. While they used to recommend the Rancho's, (yrs ago) they came up with their own shock, they feel is better than the old rancho's.
Make sure they send you the correct length. I had to return the first ones they sold me. too short.
If you bought the QA1's from Summit, they're usually pretty understanding..
